Driver - Axle Assembly Tool

    Since the drivers are a bit loose on the axle, an assembly tool was built that provides near exact spacing and squareness.  The tool is a two part clam shell arrangement that is hollow inside to provide room to hold two bearing assemblies.  The bearings rotate freely on the axle.  Two are shown on the axle in one half of the tool at left.
    Another two bearings are shown at the left side of the picture still inside the raft and support assembly.  The bearings are PLA while the raft and support are green ABS.  This worked out well before using translucent PLA and was continued here.  The bearing assembly was adjusted to better fit on the axle and provide more room to slide up and down in the frame slot.
    The tool came out a bit too wide giving an incorrect value for the wheel gauge.  The 3D CAD drawing was revised and new tool parts will be printed to slightly smaller dimensions to adjust the gauge to more correct value.